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(11)

EP 2 904 597 A1

(12)

(43) Date of publication: 12.08.2015 Bulletin 2015/33 (21) Application number: 13774772.1 (22) Date of filing: 08.10.2013

(51) International Patent Classification (IPC):  G08B 25/04(2006.01) G08B 29/18(2006.01) H04L 12/42(2006.01) G08B 25/14(2006.01) (86) International application number: PCT/GB2013/052618 (87) International publication number: WO 2014/057256 (17.04.2014 Gazette 2014/16)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME (30) Priority: 08.10.2012 GB 201217970 (71) Applicant: Thorn Security Limited Middlesex TW16 5DB (GB)	(72) Inventors: BRENNER, Andreas 85635 Hohenkirchen (DE) KULKARNI, Prasad Winnersh, Berkshire RG41 5SW (GB) BAROCH, Josef 46006 Liberec 6 (CZ) VETRICEK, Vladimir 63500 Brno (CZ) (74) Representative: Wright, Howard Hugh Burnby et al Withers & Rogers LLP 4 More London Riverside London SE1 2AU London SE1 2AU (GB)